Dixon SV150HD 1/2 in. Brass Heavy Duty, High Capacity Safety Pop-Off Valve 150 PSI

The Dixon SV150HD Heavy Duty, High Capacity Safety Pop-Off Valve is engineered to protect compressors, compressed air systems, and un-fired pressure vessels from overpressure by automatically venting excess air. Constructed entirely from brass with a stainless steel ball on a precision-machined brass seat, it operates reliably up to 400 °F (204 °C). With a preset 150 PSI pressure setting and 1/2 in. male NPT connection, it supports flow rates up to 300 SCFM. Certified to ASME, National Board, and CSA B51-03 standards, it delivers dependable safety for heavy-duty industrial pneumatic applications.

Features

• Automatically vents excess air to prevent overpressure.
• Durable all-brass construction with stainless steel ball on precision-machined brass seat.
• Reliable operation up to 400 °F (204 °C).
• Factory preset 150 PSI opening pressure for system protection.
• Flow capacity up to 300 SCFM for high-capacity applications.
• Certified to ASME, National Board, and CSA B51-03 standards.

Specifications

• Connection: 1/2 in. Male NPT
• Pressure Setting: 150 PSI
• Flow Capacity: Approximately 300 SCFM
• Temperature Range: Up to 400 °F (204 °C)
• Material: Brass body with stainless steel ball on brass seat
• Weight: 2.5 lb
• Standards: ASME, National Board, CSA B51-03 Certified
• Application: Heavy-duty industrial pneumatic overpressure protection